Spring structure.



F. P. DARGY. SPRING STRUCTURE. APPLIUATION PH] ED JAILBZ, 1912. RENEWED APR. 9, 1914.

Patented May 12, 1914.

citizen of the United States,

FRANK 1?. DAROY, 0F KALAMAZOO, MICHIGAN.

SPRING STRUCTURE.

Specification of Letters Patent.

Patented May 12, 1914..

Application filed January 22, 1912, Serial No. 672,556. Renewed April 9, 1914. Serial No. 880,809.

To all whom it may concern Be it known that I, FRANK P. DAuor, a residing at the city of Kalamazoo, county of Kalamazoo,

' and State of Michigan, have invented certain new and useful Improvements in Spring Structures, of which the following is a specification.

This invention relates to improvements in spring structures.

It relates particularly to cushion or upholstering springs for carriage seats, chairs, couches, and'the like.

The main objects of this invention are, first, to provide an improved spring structure in which the springs are effectively supported, which may be adjusted to frames of different dimensions. Second, to pro; vide an improved spring structure having these advantages which may be adjusted and applied by a person of ordinary skill and with tools or implements such as are ordinarily at hand.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in 'the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a perspective view of a structure embodying the features of my invention, the side pieces of a supporting frame being shown in connection therewith to illustrate the relation of the parts in use.

. Fig. II is an enlarged cross section taken on .a detail perspective Ashaped as sive, the ends at the outer sections being a line corresponding to line 2-2 oil Fig. 1, showing the telesco ed ends of two of the support sections. Fig. III is'an enlarged cross section taken on a line corresponding to line 3-3 of Fig. I, showing the manner of attaching and supportingthe springs. Fig. IV is a detail perspective showing the supported sections before the crimps or indentations 11 have been formed in their telescoped portions to secure the sections against longitudinal movement. Fig. V 15 view of a modified structure flat in cross-section instead of shown in Figs. I to IV inclustraight. instead of provided with hanger arms as shown in Fig. I. Fig. VI is an enlarged cross section taken on a line correspondin to line (5-6 of Fig. V. Fig. VII

is an en arged cross section taken on a line corresponding to line 7--7 of Fig. V.

In the drawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the arrows at the ends of the section lines.

In the drawing, I show only the side rails:

1 of a supporting frame. The helically coiled springs 2 are mounted on a support comprising telescoped sections 3, 3 and 4 These telescoped sections are formed of strips of sheet metal with opposite inturned bead-like edges 5, the edges of the outer sections 3 embracing the edges of the inner sectionfl so that the sections are telescopingly associated to permit their adjustment to the sup orting frame. The outer sections are preterably provided with upturned hanger arms 6 at their outer ends. The inturned edges 5 of the support sections are folded onto and embrace the opposite sides of the bottom coils 8 of the springs whereby the springs are rigidly secured and supported. In the structure illustrated, there is one spring on each section. The spring on the central section 4- is centrally. disposed so that when adjusting the support, the springs may be uniformly spaced.

In the structure shown in Figs. I to IV inclusive, the supports are A-sha'pedin crosssection and bottom coils 8 upset at 9 to rest on the apex of the support. After the supports are adjusted to the frame and secured as by means of the nails or brads 10, the telescoped portions of the sections are preferably crimped or indented at 11 to secure the parts together and prevent longitudinal movement or spreadin when the springs are carrying a load. These indentations are shown in Fig. I IV to show the springs as they are preferably supplied to the trade. The 'crimps or indentations can be easily formed by means of a pair of pincers or pliers.

In themodification shown in Fig. V, the end sections are flat in cross-section. "The but are omitted from Fig.

end sections 12 are provided with inturned which are folded upon and embrace sides of the bottom coils, of the Springs H section :15 1s. mthis modified construction, a

flat bar, the bottom coil of the central spring 16 being provided with an eye for the rivet 17 The ends of the support shown in this modified construction are not upturned or provided with hanger arms as in the pre ferred construction, but ,have nail holes 18 at their ends for attachment to the frame or bed of a chair or the like.

With the supports thus formed of adjustably associated sections, the spring or cushion units can be-furnished the trade in a comparatively few sizes and adjusted by the user to the particular frame it is desired to cushion or upholster. This is of great advantage as heretofore it has not been practical for the retail trade to carry spring supports in stock for general useo'n account of the great variation in the sizes of couch, chair and other cushion frames.

By my improvements, I provide a structure'in which the springs are securely supported and at the same time one which'is capable of ready'adjustment and application by an unskilled person. v

Having thus described my inventiomwhat I claim as new anddesire to secure by Letters Patent is:

' 1. In a spring structure, the combination of the h elically coiled springs, and a support therefor, comprising telescoped sections formed of's t-rips of sheet metal with opposite inturned bead-like edges folded onto and embracing opposite sides of the bottom coils of the springs whereby said springs are supported and retained in positiomsaid sections being A-shaped in cross-section, the outer sections being adapted for attachment to a frame.

2. In a spring structure, the combination of the hclically coiled springs, and a support therefor, comprising sections formed of strips of sheet metal with opposite inturned bead-like edges the edges of one section embracing the other, whereby the sections are adjustably connected, the said edges being folded onto and embracing opposite sides of the bottom coils of the springs whereby said springs are supported and retained in position.

3. In a spring structure, the combination of the springs, and a support therefor comprising telescoping sections, the opposite edges of one section being turned inwardly to embrace and telescopingly engage another for longitudinal adjustment, the springs being mounted on said sections, the outer sections being adapted for attachment to a frame;

4-. In a spring structure, the combination of helically coiled springs, and a support therefor formed of channel-shaped telescoping sections, the arms of the sections being folded onto opposite sidesof the bottom coils of the springs whereby said springs are supported and retained in position on the sections, the arms of one section embracing another whereby they are adjustably associated.

5. In a spring structure, the combination of the springs, and a support on which said springs are mounted, comprising telescopsingly associated sections whereby the support may be longitudinally adjusted for the purpose specified.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

FRANK P. DARCY. 1 s.]

Witnesses:

LUELLA G. GREENFIELD, PEARL E. LILLIE.

dppies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

Washingtoml). C. Y 

